Combined oil-cup and packing-gland



w; F. SIGLER.

COMBlNED OIL CUP AND PACKIN'G GLAND.

Patented Jan. 11,1921. I

lNl/EIVTUR M071 A TTORNE Y 8 UNITED WILLIAM F. SIGLER, LINCOLN,NEBRASKA.

COMBINED OIL-CUP AND PACKING-GLAND.

Specification of Letters Patent;

Patented Jan. 11, 1921.

Application filed April 17, 1920. Serial No. 374,606.

My invention relates to improvements in combination oil cups and packingglands,

and it consists in the combinations, constructions, and arrangementshereln described and claimed.

An ob ect of my invention is to provide a novel form of combination 011cup and packing gland, which is designed for usewith a mechanismprovided with an upright piston rod, and which is provided with meansfor effectively lubricating the-piston rod while also performing thefunction for which a packing gland is ordinarily employed.

A further object of my invention is to provide a device of the typedescribed in which means is provided for keeping the piston rodconstantly immersed in a lubricant.

A further object of my invention is to provide a device of the typedescribed, which can be filled with a lubricating substance while theapparatus to which applied is in service.

A further object of my invention is to provide a device of the typedescribed in which means is provided for preventing the lubricatingfluid being ejected by the operation of the piston rod.

A further object of my invention is to provide a device of the typedescribed that is durable in construction and thoroughly practicalcommercially.

Other objects and advantages will appear in the following specification,and the novel features of the invention will be particularly pointed outin the appended claims.

My invention is illustrated in the accompanying drawings, forming partof this application, in Wl11Cl1=-- The figure is a side elevation of thedevice operatively applied, portions being broken away and otherportions being shown in section.

Referring to the accompanying drawings, it will be noted that I make useof a pair of vertically disposed co-axially alined cylinders 1 and 2provided respectively with cylinder heads 3 and 4: which aresecuredthereto in an ordinary manner, as by bolts 5. A piston rod 6 is arrangedto be reciprocated within-the cylinders 1 and 2. The parts described sofar are of ordinary construction and form no part of my invention exceptin so far as they cooperate with the parts about to be described.

It will be noted that I provide a casing having an enlarged bowl-likeupper portion 7 and being formed with a vertically extending centralbore 8 which is adapted to receive the piston rod 6. The central bore 8opens at its upper end into a cavity 9 in which a lubricating substanceis placed. The upper edge of the enlarged portion 7 is beveled and isformed with an inwardly extending integral flange 10 which overhangs thecavity 9 and prevents the lubrieating substance placed therein beingejected by the operation of the piston rod 6.

fAcylindrical lower portion 11 of the casing is formed with a centralrecess 12- through which the piston rod 6 extends. Packing 1 1 isarranged between the inner wall of the central recess 12 and the pistonrod 6. The lower portion 11 of the casing may be secured to the cylinderhead 4 in any suitable manner. In the embodiment of my inventionillustrated in the accompanying drawings, I have shown the lower endthereof reduced and threaded eXteriorly at 13.

This threaded end 13 is screwed into a threaded opening 15 which isformed through the cylinder head 1. The lower portion 11 of the casinghas a plurality of vertically extending grooves 16 in its outer surfacewhich are adapted to receive the jaws of a spanner wrench so that thecasing can be conveniently secured in operative position.

From the foregoing description of the various parts of the device, theoperation thereof may be readily understood. A lubricating substance isplaced within the cavity 9 and willkeep the piston rod 6 constantlylubricated, thereby preventing the wearing out of the piston rod asquickly as is the case when my improved device is not used.

The arrangement of the oil cup and packing gland will more than doublethe life plied, will function to better advantage. A properly lubricatedpiston, will to a great extent, assist lubricating the cylinderparticularly since the piston is vertically disposed. The inwardlyextending beveled flange 10 will prevent the lubricating substance beingblown from the cup by the operation of the piston rod. One of theprincipal advantages oi the device lies in the fact that the cup can berefilled while the piston rod is being operated. Furthermore, when it isdesired to renew the packing, it is not necessarv to remove the devicefrom the piston rod as it will be obvious that the device may be movedalong the piston rod 6 until the packing land 17, which is shown in theaccompanying drawings as being secured to the cylinder head 3, is partlyreceived within the cavity 9, thereby affording ample space forperforming the work re quired and permitting access to the cylinder 1.

I claim:

1. The combination with a cylinder having a cylinder head and avertically disposed piston rod mounted to be reciprocated there in, of acombination oil cup and packing gland comprising a single integralcasing formed with a vertically extending central bore adapted toreceive the piston rod, said casing having a bowl-like upper portionprovided with a substantially bowl-shaped cavity for holding alubricating substance and having its upper edge beveled and fashionedwith an inwardly extending annular flange arranged to overhang thecavity, and a lower cylindrical portion having a vertically extendingcentral recess adapted to receive packing, said lower portion having itslower end reduced and threaded for screwing in a threaded opening in acylinder head and having a plurality of vertical grooves provided in itsouter surface.

2. The combination with a cylinder having a cylinder head and avertically disposed piston rod mounted to be reciprocated therein, of acombination oil cup and packing gland comprising a casing formed with avertically extending central bore adapted to receive the piston rod,said casing having a bowl-like upper portion provided with a cavity forholding a lubricating substance and having its upper edge beveled andfashioned with an inwardly extending annular flange, and a lowercylindrical portion having a vertically extending central recess adaptedto receive packing, said lower por tion having its lower end reduced andthreaded for screwing in a threaded opening in a cylinder head andhaving a plurality of vertical grooves provided in its outer surface.

WILLIAM F. SIGLER.

